CVE-2026-0967 — Libssh: libssh: denial of service via inefficient regular expression processing
A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the `match_p…
Published: 2026-03-26 · CVSS: 2.2 · CVSS 3.0
A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in a Denial of Service (DoS) for the client.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7